[ubuntu-havana-R1.10-#18] subnet broadcast fails with non-default MTU set
Bug #1359145 reported by
Prashant Shetty
This bug affects 1 person
| Affects | Status | Importance | Assigned to | Milestone | ||
|---|---|---|---|---|---|---|
| Juniper Openstack | Status tracked in Trunk | |||||
| R1.1 |
Fix Committed
|
High
|
Divakar Dharanalakota | |||
| Trunk |
Fix Committed
|
High
|
Divakar Dharanalakota | |||
Bug Description
With latest R1.10 subnet broadcast is failing when Instance are launched in different compute nodes with MTU set to 9000 on VM’s.
Ping was tried with packet size set to 3000.
Issue is seen only from VM's which are launched in other compute than source VM compute.
Shown setup to Divakar.
| Changed in juniperopenstack: | |
| milestone: | r1.10-fcs → none |
| information type: | Proprietary → Public |
| tags: | added: releasenote |
Revision history for this message
| Divakar Dharanalakota (ddivakar) wrote | #1 |
| tags: | removed: releasenote |
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Git commit id I57ab54c81672e2
The issue is because of DF bit bit packet that is trapped to Agent does not have ethernet header incase of subnet broadcast and comeplete broadcast. vr_pcow() is modified to ensure that ethernet header is not truncated even in case vr_pcow() to be able to trap the DF bit packet as is to AGent.
-Divakar